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Patent 1408771
Padlock Patent — Combo
Patent 1408771
Inventor:
Henry O Nielsen
View on USPTO / Google Patents ↗
Patent #
1408771
Issue Date
1921-04-06
Inventor
Henry O Nielsen
Type
Combo
Patent Drawings
Drawing 1
Patent Details
Patent Number
1408771
Issue Date
1921-04-06
Inventor
Henry O Nielsen
Patent Type
Combo
External Link
https://patents.google.com/patent/US1408771/en ↗
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